baber/WOPTO huggingface dataset:
Patent DE-3926676-A1 (DE)
Title: Penetration path evaluation system for hardness testingdevice
Inventor: SCHMIRLER GERHARD DIPL PHYS DR
IPC: G01N3/46
Filed: 1989-08-09
Abstract: The hardness testing device evaluates the hardness of the test body (1) from the penetration depth of a relatively displaced reference body (2), with monitoring of the force characteristic as the reference body approaches the test body. The end of the penetration path is determined from the obtained characteristic curve.Pref. the test body is provided by a sphere attached to the endof a cylindrical pin, supported in a holder (5) for rotation about an axis (6), to move in a circular path in the direction of the reference body. This is mechanically coupled to a weighing cell (3), for measuring the exerted force.
Patent DE-3926815-A1 (DE)
Title: Clutch for vehicle automatic gearboxes - has sliding switch that allows mutual rotation or idling of one shaft w.r.t. another in both directions
IPC: F16D41/08
Filed: 1989-08-14
Abstract: The free running and locking clutch, for vehicle automatic gearboxes, has a sliding switch (1,2) with deflecting curves (5) or cams. The switch has positions which allow one shaft to be locked or to rotate freely in either or both directions w.r.t. another shaft. ADVANTAGE - The clutch can be used for shafts rotating in either direction.
Patent DE-3929719-A1 (DE)
Title: Aircraft propeller swivel blades - are attached to hub by ball joints which permit limited movement of blades relative to hub
Inventor: KARRAIS BERTHOLD DIPL ING
IPC: B64C11/28
Filed: 1989-09-07
Abstract: The aircraft propeller has each blade (12) attached to the hub (14) by a shaft (28) in its root arranged at right angles to the blade axis (43).  This shaft (28) is mounted in a ball joint (27) in a radial arm (23) which is rigidly attached to the hub (14). The radial arm (22) has a tapered extension (35) which projects with lateral clearance (36) into a tubular housing (32) fitted inside the blade.  The blade is thus held in  place in the radial direction against centrifugal force and its rotation about its axis (43) is controlled by the  pitch changing mechanism in the hub (14), but the ball joint (27) permits limited movement relative to the radial arm (23). USE/ADVANTAGE - Reduction of propeller vibration aircraft.
Patent DE-3929754-A1 (DE)
Inventor: THEXTON TIMOTHY
IPC: C21D9/00
Filed: 1989-09-07
Abstract: Process and device for the intermediate heating of a forged piece (7) obtained in the press forge or under the hammer by a manipulator (8). To reduce transport times, heat losses and scaling, a light intermediate heating furnace (1) is provided near the press which has a gas burner (4) arranged around a workpiece receiving chamber (3) designed for brief burner operation. The forged piece (7) can, if necessary, be quickly taken to the intermediate heating furnace (1) in which it is held by the manipulator (8), and if necessary, rotated to achieve even heat distribution.
Patent DE-3939323-A1 (DE)
Title: Digit multiplier circuit with fixed value main stage - has side change circuit region without intersecting conductors and two product-AND circuits
Inventor: MERKLE PAUL
IPC: G06F7/491
Filed: 1989-11-28
Abstract: The electronic digit multiplier circuit has as its main part a multiplication fixed value circuit which processes the decimal numbers in 1-from-10 code.  Two product-AND circuits are associated with each two-number product with a non-zero first digit. The circuit contains a side change circuit which ensures that the largest factor number is always processed on the same side when the two factor numbers are different. USE/ADVANTAGE - For multiplying 9 by 9 as a maximum.  The electronic digit multiplier circuit has a region in which no conductors intersect.
Patent DE-3940298-A1 (DE)
Inventor: MITTELSTAEDT RAINER DIPL ING
IPC: H04M1/26
Filed: 1989-12-06
Abstract: Modern subscriber equipment normally comprises a combination of different devices, e.g. answering machine, automatic dialling unit, alarm and monitoring device, appointment reminder, remote switching unit, dictation machine etc. When the subscriber equipment is commissioned, a multiplicity of settings, inputs etc. need to be carried out by the owner. A verification of the dialling method used in the telecommunication network is also to be carried out along with switching of the dialling method if required. A switch is normally provided for this purpose on the underside of the equipment. If this switch is not in the correct switching position or if it has been inadvertently actuated, no automatic call forwarding to a radiopaging receiver may take place, for example. The new subscriber equipment reliably avoids a hidden defect of this type in that the control device identifies the dialling method used in the telecommunication network at least when the subscriber equipment is commissioned and, if necessary, switches over automatically to this dialling method. The new subscriber equipment can be used for switched connections in all communication networks. <IMAGE>
Patent DE-3940510-A1 (DE)
Title: Reaction temp. raising appts. for combustion engine - heats ingested air using fuel injector and igniter in line by-passing air inlet line and using switch-over valve
Inventor: BOLL WOLF DR ING
IPC: F02M31/135
Filed: 1989-12-07
Abstract: The arrangement has a heater to heat the air ingested into the engine.  A bypass line (8) brances from the air inlet line (2) and contains the heater.  The amt. of air passing  through the bypass time is controlled according to the operating parameters of the engine (1).  The heater consists of a fuel injection nozzle (10) that injects fuel into the bypass line towards an igniter (9) located downstream. The bypass line has a flame trap.  A valve (11) is located where the bypass line meets the air  inlet line and is able to close completely either by bypass line or the air inlet line.  The valve consists of a flap on a shaft (24) acted on by the output shaft (75) of a setting drive (26).  A heat sensor (20) measures air temp. and is connected to an electronic control (12) that controls the igniter. ADVANTAGE - Avoids adversely affecting supply when no increase in temp. is needed.
Patent DE-3942003-A1 (DE)
Inventor: GLEIM GUENTER
IPC: H02P6/15
Filed: 1989-12-20
Abstract: In electrical appliances with motors, which are used, for example, as a tape, disk or head drive, the problem of setting different operating modes as rapidly as possible is conventionally solved by supplying a current appreciably greater than or less than the stationary value to the coil when these changes are made. As soon as the final value of the rotational speed or torque is reached, the current is changed to the stationary value corresponding to the modified operating mode. According to the invention, the moment at which the coil current is changed is also changed in the acceleration, retardation and/or loading phase. Both the process and the circuit are used for preference in video and audio recorders.
Patent DE-4001287-A1 (DE)
Title: Local correction of blown film thickness using variable air flow
Inventor: KONERMANN STEFAN
IPC: B29C48/92
Filed: 1990-01-18
Abstract: In a process for the fine correction of the thickness profile in a blown film tube, the flow of cooling air is varied in individual regions of the film bubble periphery.  At least part of the cooling air is introduced to the bubble by a circumferential slot which is divided into individually fed segments. The control of the additional cooling air is by means of radial blowers. In this manner it is possible to accurately control the cooling action and therefore film thickness in individual circumferential regions of the film bubbles. Equipment for achieving fine control of the additional air is also described.
Patent DE-4011537-A1 (DE)
Inventor: FUCHS KARL HEINZ
IPC: B65D83/44
Filed: 1990-04-10
Abstract: A discharge device with a liquid pump (5) and an air pump (6) has a control valve (15) for the latter lying very close to the discharge opening, the mouth (20) of which opens directly into a terminal duct (16) forming the discharge opening, so that pressure losses are largely avoided. For cleaning, at least in the area of the discharge opening, a control is provided by means of which air continues to be delivered on termination of the liquid delivery. In this way a very fine atomisation is possible with a simple design. <IMAGE>
Patent DE-4013978-A1 (DE)
Title: Data transmission system using ultrasound - transmits information via machine bearing to stationary target, for registration or regulation
Inventor: BEESTEN HERBERT DIPL ING
IPC: H04B11/00
Filed: 1990-05-01
Abstract: An arrangement transmits information via the bearing (6) of a moving machine element using at least one generator or transmitter (10), an ultrasonic transformer (12) as a transmitting antenna, at least one ultrasonic transformer (13) connected to a fixed part of the bearing (6) as a receiving antenna, a receiver circuit (14) and a data processing circuit (15). USE/ADVANTAGE - Inexpensive, no licence required; reduced chance of lock failure and pollution. Can be applied to railway vehicles from or to steel wheels and their bearings, the ultrasonic transducer(s) being mounted on the rail(s). Containers on conveyor or systems, via roller bearings. Monitoring temp. and tyre pressure of lorry axles esp. those carrying potentially dangerous loads.
Patent DE-4032249-A1 (DE)
Title: Brightening flue gas gypsum
Inventor: HUELLER ROLF DR
IPC: C01F11/46
Filed: 1990-10-11
Abstract: (i)Washing liquor is hydrocloned into an overflow and thickened underflow. (ii) Underflow is sepd. into flue gas gypsum prod. and wash liquor. (iii) Overflow from (i) is treated in a high performance hydrocyclone to give an underflow for direct recycle to the wash liquor circulation system and overflow for sepn. into a sludge plus a liquor for recycle to the wash system.
Patent DE-4032499-A1 (DE)
Title: Multi-cavity moulding system for injecting two or more plastics
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/28
Filed: 1990-10-12
Abstract: A multi-cavity injection moulding system comprises: (a) a back plate arrangement, (b) hot runner manifold plates for first and second plastic materials, arranged parallel to one another, (c) injection nozzles fixed to the manifold plate for feeding material to cavities in a cavity plate, (d) an inlet for a first plastic material in the back plate arrangement, (e) a central supply channel extending from the inlet through the manifold plates, (f) branched hot runners extending from the channel to melt channels of each injection nozzle, and (g) an inlet for a second plastic material in the manifold plate connected by branching hot runners to a central axial bore of each nozzle.
Patent DE-4033376-A1 (DE)
Title: Processing HDPE powder for extrusion blow-moulding -  by processing at 210-290 deg. C with specified mechanical energy input divided between crystalline-molten transition and molten states
Inventor: DRECHSEL WOLFGANG DIPL CHEM
IPC: C08J5/00
Filed: 1990-10-16
Abstract: A process is claimed for processing high-density polyethylene powder (HDPE) (I), which is obtd. by gas-phase polymerisation with organo-Cr catalysts, has MFI 210 N = 12-32 g/10 mins. with ratio MFI-210N/MFI-21N = 50-100, and is suitable for prodn. of hollow prods. by extrusion blow-moulding. The powder is processed at 210-290 deg.C, with an effective mechanical energy input of 0.6-1.55 MJ/kg, 30-55% of which is concentrated in the partly-crystalline/molten-amorphous transition zone and 30-55% in the molten amorphous state. Effective mechanical energy input is pref. 0.75-1.30 MJ/kg, with 35-50% of the energy conc. in each of the above zones. The process enables the processing of HDPE powder to make it suitable for the problem-free prodn. of high-strength, stress crack-resistant hollow mouldings on modern blow-moulding equipment; this is achieved by modifying crucial properties such as percent swell amd melt viscosity.
Patent DE-4034821-A1 (DE)
Title: Vibrating welding head for friction welding of e,.g. metals - is of lightweight construction with integral feed mechanism provided with welding pressure obtd. by a driven head through a transmission
Inventor: WIEDITZ HOLGER
IPC: B29C65/06
Filed: 1990-11-02
Abstract: The head is driven by a motor (2) through transmission which provides a welding pressure (p) through an integral forward feed unit (4). A reciprocating slider is connected with one half of the joining tool (5) and is combined as a electromechanical unit with the forward feed (4). An eccentric shaft (7) has a balancing disc (8) and the link (9) is of low mass construction with a self-aligning bearing (10) at one end and a grooved bearing (11) at the other. A tool (5) which is shaped to suit the part (22) to be joined to a fixed work piece (30) is mounted on a slider (23) driven by a link (9). The movement is determined by altering the throw (e) of the eccentric shaft (7). It is driven by a brushless motor (2) whose speed can be continuously varied up to 10,000 r.p.m. The forward feed is mounted on a slide (27) and the welding pressure (p) is provided by a cylinder (20). USE/ADVANTAGE - The friction welding head is of lightweight construction and easily adjustable. ( 1/5)
Patent DE-4038271-A1 (DE)
Title: Controlling transport of copy sheets in duplex machine - stacking and feeding to duplex unit in predetermined position if jam occurs
IPC: G03G21/00
Filed: 1990-11-30
Abstract: The copy sheets are exposed on one side and turned over by a reversing unit (15) and delivered to a duplex unit (14) for the image recording unit (10) which reproduces an image on the other side of the sheet before deposition it (28) on a tray (50). If jamming occurs, copy papers already on  conveying path are guided to the duplex unit and stacked in a predetermined position in the latter before being brought into the transport path again for leading to units outside the duplex unit unit the fault condition causing blocking is cleared. ADVANTAGE - Reduced number of components.
Patent DE-4108950-A1 (DE)
Title: Domestic refuse treatment system for reducing quantity - by washing with water and sepg.
Inventor: BULGARU SAVILICA
IPC: B03B9/06
Filed: 1991-03-19
Abstract: Domestic refuse is deposited in a masking drum, in which it is sprayed with water, producing intensive washing. It is then removed and sorted, while the water is taken to a separating tank in which the sludge is allowed to settle and separate, the water being returned to the washing circuit while the separated sludge is removed. ADVANTAGE - Quantity of refuse is reduced.
Patent DE-4117828-A1 (DE)
Title: Material recovery process from small-arms ammunition - involves bonding mercury in fuse exhaust gas by forming amalgam in a reactor
Inventor: KRUEMMEL EBERHARD DIPL ING
IPC: B01D53/64
Filed: 1991-05-29
Abstract: Material is recovered by using the gas pressure from the explosion of the propellant charge to separate the bullet, cartridge case and fuse, bullet resistance being kept to a minimum. Mercury in the exhaust gas from the fuse is bonded by forming amalgam on the metal casing of ammunition components in a reactor, and mercury is recovered by heating the amalgam. Where there are no amalgam-formation agents on the components, these can be fed in chip form into the reactor. ADVANTAGE - Nitrous oxide escapes only in light concn., while the mercury is transferred into a harmless amalgam or recovered in the pure state.
Patent DE-4127405-A1 (DE)
Inventor: BENECKE WOLFGANG
IPC: B01J19/00
Filed: 1991-08-19
Abstract: The description relates to a process for separating mixtures of microscopically small dielectric particles in suspension and a device for implementing the process. Prior art separation processes separate particle mixtures according to the differing mobilities of their components. This requires extensive measures to suppress convection in the suspension. In the process of the invention, the particle mixture is forced onto tracks by dielectrophoretic forces or by the flow of the suspension medium. An additional force which, for specific particle types, offsets the force driving the particles onto tracks, separates particles of these types out of the mixture. The device for implementing the process is suitable for system integration. It can be integrated on surfaces of silicon wafers economically and in large numbers. The device is suitable for isolating small particles like biological cells, cell organella, bio-molecules and organic dielectric particles.
Patent DE-4137006-A1 (DE)
Title: Induction motor revolution regulation system - uses calculated edge frequency corresponding to max voltage to optimise motor parameters
Inventor: SCHAEFFERSMANN HEINZ
IPC: H02P27/04
Filed: 1991-11-11
Abstract: The rev regulation system uses a frequency regulator to allow different torque outputs to be obtained over a defined rev range. The ratio of max. frequency to edge frequency, at which a max. voltage is obtained, corresponds to the reciprocal ratio of loading torque in a lower rev range to loading torque in an upper rev range. This allows the edge frequency to be calculated and used for optimisation of the motor parameters using a motor model, to increase the power output. USE/ADVANTAGE - For electric induction motor, machinery, plant or vehicle drive. Allows power and revs to be increased, without thermal loading of motor. .
Patent DE-4141944-A1 (DE)
Inventor: KUNKEL HORST
IPC: G01S17/04
Filed: 1991-12-19
Abstract: This device contains in a transmitting/receiving unit (1), in addition to the usual transmitter (3) and receiver (4) with associated detection circuit (10), a second receiver (5) which can be reached directly by the radiation emitted by the transmitter (3) and which is associated with a second detection circuit (12). In an initialisation mode in front of a stationary reflector, the operating voltage of the transmitter (3) or the gain of the detection circuits (10, 12) is continuously increased by a control unit (9) until the desired sensitivity is reached. The values of representative voltages at which the two detection circuits (10, 12) trigger are stored in two memories (13, 14). The quotient of these two values is stored in a third memory (16). In an adjustment mode which is carried out at particular time intervals, the control unit (9) also continuously increases the operating voltage of the transmitter (3) or the gain of the detection circuits (10, 12) and determines the value of the representative voltage at which the second detection circuit (12) outputs an output signal. This value is supplied, together with the quotient stored in the third memory (16), to a multiplier (17). The output signal of the latter is representative of a nominal operating voltage of the transmitter (3) or gain of the detection circuits (10, 12), the adjustment of which is finally handled by the microprocessor (9). 
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Patent DE-4200430-A1 (DE)
Title: Rubber conveyor belt - comprises reinforcing cord strips with outer covering layers and strip spacing greater than strip breadth
Inventor: THIES PETER
IPC: F16G3/10
Filed: 1992-01-10
Abstract: Conveyor belt mfd. in rubber or similar material has reinforcing inserts (3) consisting of longitudinal strands e.g. cords, fibres. The reinforcement is covered on both sides by at least one upper (1) and one lower (2) layer. The reinforcement comprises strips (3) arranged longitudinally next to each other, the spacing (A) between adjacent strips (3) being at least 10% greater than the strip breadth (B). To connect adjacent belt ends the upper (1) and lower (2) covering layers are initially removed at the ends to reveal the reinforcing strips (3). Additional connecting strips are placed between the ends of the revealed strips and a layer of textile cords is placed across the joint a right angles to the conveyor belt srands. The upper (1) and lower (2) sections of cover are then replaced by rubber strip at the joint area. ADVANTAGE - The belt is thinner, easier to bend and uses less rubber. Short, secure connection of successive belts is possible.
Patent DE-4202780-A1 (DE)
Title: Projectile for use in large calibre gun - is made in two parts and has body containing propellant charge which can be fitted with either of two heads for practice or actual warfare
Inventor: HEITMANN THOMAS DIPL ING
IPC: F42B5/073
Filed: 1992-01-31
Abstract: The projectile for use in a large calibre gun is made in two parts. The projectile has a body (1) which contains the propellant charge and can be fitted either with an explosive head (2) for use in warfare or with a non-explosive head (3) for use in practice firing. The projectile body (1) has an inner part (7) which has an internal screw thread (10) to receive either of the heads (2) or (3). The outer end of the inner part (7) is a close fit in the housing (4) of the body (1) and is secured by radial pins which fit in holes in both housing (4) and inner part (7). USE/ADVANTAGE - The basic cartridge can be used both in practice firing or in warfare, by fitting the appropriate head.
Patent DE-4206689-A1 (DE)
Title: Multi disc contra flow high temperature solar collector - has cover of several overlapping glass plates facing sun enclosing void beneath them and spaces between plates closed by air permeable distance pieces
Inventor: COST KARLFRIED
IPC: F24S10/50
Filed: 1992-03-04
Abstract: The voids (3) are closed at the sides and form a common channel enclosed by the plates (5) on the side facing the sun, and on the other side by a layer of heat insulation. A superficially enlarged absorber is located on the inside of the channel, and a considerable proportion of sun rays, passing through the glass plates, is absorbed in this absorber and converted into heat energy. Outside air flows through the spaces between the plates and into the void where it is heated by the absorber, and is finally extracted from the upper end and used as heating. The air flow between plates and over the width is of the same strength. ADVANTAGE - Larger heat transfer surfaces from absorber to hot air carrier.
Patent DE-4206727-A1 (DE)
Title: Material line for producing shaped packing containers e.g. for electric or electronic parts - requires several layers to form electrostatically screening material line with one of layers designed with high conductivity and lower specific resistance than remainder
Inventor: GOLANE MEIR
IPC: B32B7/025
Filed: 1992-03-04
Abstract: The layer (16) with high conductivity has a specific surface resistance of less than 1 X 104 ohm/sq, pref. 102 to 103 ohm/sq. Electrostatically shunting layers (14, 18) with a specific surface resistance between 1 X 105 ohm/sq and 1 X 1012 ohm/sq are assigned to the high conductivity layer (16). The high conductivity layer (16) is provided between electrostatically bleeding or dissipating layers (14, 18). The electrostatically screening layer (16) is interposed in one of the other layers (14, 18, 20). ADVANTAGE- Allows packing containers of different type and shape and gives electrostatic screening for protection of electronic products according to relevant regulations.
Patent DE-4208520-A1 (DE)
Inventor: ROTHFUSS HANS
IPC: C21C5/46
Filed: 1992-03-17
Abstract: A tap pipe for a converter or an electric arc furnace should achieve tapping times which are the same as far as possible during as many tappings as possible. For this purpose, the flow cross-sections at the various heights of the tap pipe (3) are, at least in the outflow zone (11) of the tap pipe (3), approximately equal to the cross-sections of that flow profile (So) of the melt which results at a vertical flow of the melt with a bath level of between 30% and 70% of the maximum bath level height (xm). 
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